Combination or keyless lock.



- :0. M. FARRAND.

COMBINATION 0R KBYLESS LOCK.

APPLICATION FILED JUNE 4, 1906- 2 BHEETB-BHEBT 1.

a f 6 V i 7 v i S W 6 is Q o L; F "'15 f 0 J 0 0 {v W 3 1L y 1 7 8 A A im 0 10- 9% @0001 i FIG. 4.

WITNESSES:

Wgu M PATENTED JULY 10, 1007.

. -No. 850,200. PATENTBD JULY 16, 1907.

' 0 M. FARR-AND.

COMBINATION 0R IKEYLESS LOCK.

Arrmo'umn nun mm: 4. 1000. 0

' z SHEETS-SHEET z;

3 FIG. 6. FIG. 7.

INVE NTORI 0 752v 7i! wrmd ms uamus PETERS cm, WASHINGTON, n. c.

' fectly reliable in operation.

PATENT OFFICE.

OLIVER M. FARRAND, on NEW YORK, N. Y.

ooMBinATIoN on KEYLESS LooK.

I Specification of Letters Patent.

Patented July 16, 1907.

Application filed June 4,1906. Serial No. 319,997.

To all whom it may concern:

Be it known that I, OLIVER M. FARRAND, a citizen of the United States,residing in the borough of Manhattan, city, county, and State of NewYork, have invented certain new and useful Improvements in Combinationor Keyless Locks, of which the following is a specification.

This invention aims to provide certain improvements in keyless orcombination locks adapted for use in any situation, but especially forhouse doors or front doors of apartments or the like, and adapted to beoperated by the sense of touch, the means for counting the numbersconstituting the combination being invisible so that it may be operatedby a deaf or a blind person and equally well at night or in the daytime.

The construction is extremely simple, and is per- I A feature ofespecial advantage is the facility for changing thec ombination. hi 5 iVarious other advantages are referred to'in detail hereinafter. I

The accompanying drawings illustrate an embodiment of the invention.

Figure l is an elevation of the principal parts within the casing, thecasing and certain parts being shown in section. Fig. 2 is an edge viewof the casing. Fig. 3 is a plan of a curved member carrying certainstops, the member being developed into a plane. Fig. 4 is across-section on the line 44 of Fig. 3. Fig. 5 is a view of certainparts of Fig. 1 looked at from the opposite direction. Fig. 6 is atransverse section through the lock and the door. Fig. 7 is an elevationof an alarmon the inside of a door, the inside knob being removed. Fig.8 is a plan of the knobs and spindle and an intermediate sleeveseparated from each other.

Referring to the embodiment of the invention illustrated, the usual orany suitable bolt A is pressed outward by means of a spring B, and isdrawn by means of a bolt-operating arm 0 the end of which fits into agroove in the rear end portion of the bolt. A second arm D, which I calla controlling arm and which is movable independently of the operatingarm C, carries at its end a member E which is pivoted at F and which hasa conical or pointed end G adapted to move over a series of stops H, andadapted, when it engages any one of said stops, to throw the member E tosuch a position as to render the lock inoperative. The means fortransmitting the movement of the controlling arm D to the operating arm0, comprise a pin I carried on the free end on an arm K which is pivotedon the operating arm O, and an arm L on the member E in position toengage the pin J when the parts are in their operative position, or toswing above the pin J so as to fail of any effect upon the operating arm0 when the end G of the member has engaged one of the stops and themember has been thrown from the operative to the inoperative position.The member E is held in any position to which it is thrown, by means ofa flat spring M having a downwardly projecting end adapted to fit ineither one of the two depressions N or 0, so as to hold the deviceimpositively or yieldingly in either of two positions which it mayassume.

' The means for transmitting the movement of the controlling arm D tothe operating arm G has a peculliar advantage in that it throwstherdevice E from the .bperative to the inoperative position by the veryact of drawing the bolt. Consequently if the knob be then released so asto allow the bolt to spring outward, it cannot again bedrawn withoutfollowing the entire combination from the beginning, because the memberE will have been pressed back until the depression N comes under thespring M and will be held there, and if the arm D be again turned in thedirection to operate the arm 0 the end of the arm L will pass above thepin .T and have no effect. pivotal support of the pin I allows, duringnormal operation, the arm L to remain in engagement with it, even thoughthe arm L is moved upward by the first pressure; but after the knob hasbeen released the pin .T swings down to the position of Fig. 1, so thatupon the second movement the arm L misses it. The engaging end of thearm L is slightly hollowed to insure its holding the pin J during normaloperation. The member E is also provided with a rear arm P, which, afterthe lock has been withdrawn and-the device has been thrown backward toits inoperative position, lies in such a position as to come into con-The tact with the pin Q, when the controlling arm is swung back to thestarting position. This pin Q then throws down the point G so that themember E is restored to its operative position, and remains so untileither the point G strikes one of the stops H, or the pin J is engagedby the arm L to draw the bolt.

The stops H are carried upon a curved member R having an extension Sadapted to lie flush with the edge of the casing. The edge T of thecasing is provided with an opening at opposite ends of which arerecesses U to admit the end of a finger or thumb. The member S is heldin place flush with the edge of the casing, and consequently the memberR is held in place within the casing by resting the lower edge of themember S upon the corresponding edge of the member T of 'the casing, andby bringing the grooved upper edge of the member S into engagement witha spring latch V adapted to yield to a comparatively slight pressure ineither direction. By means of this arrangement it is only necessary topull the upper end of the member S, in order to remove entirely from thecasing the member R carrying the stops. These stops are arranged in twoparallel lines, and the lock is opened by swinging the arm D andshifting it in alternate axial directions in such a way that the point Gpasses over the blank spaces of the member R. For example, with thearrangement of the stops shown in Fig. 3 the point G will pass along thedotted lines WX, and the combination expressed in numbers would be 3, 2,3, 2. It is desirable to be able to change the combination withoutspecial tools, and for this purpose each stop H is arranged with. ashaft passing through a slot Y across the member R, and with a head Z onits under side adapted to fit in either one of two sockets a in aleaf-spring b fastened on the under side of the member and extendingfromend to end thereof, so that the stop H will be held impositively oryieldingly at either end of the slot to which it may be shifted, theshifting requiring only a slight pressure. a

For counting the combination by the sense of touch, a toothed plate a isprovided, either integral with or at least turning with the controllingarm D, the teeth being spaced at corresponding angular intervals to thesuccessive stops H, and being arranged to click past a leaf spring dfastened to the inside edge e of the casing, through which may pass anadjusting screw f for determining the pressure of the spring d. As theknob carrying the plate 0 is rotated, one can feel distinctly the jar orshock of the spring d entering the grooves between the successive teeth,even though they are so slight as to make no sound, and thus thecombination may be counted in the dark. In order to determine accuratelythe two positions to which the controlling arm D and its connected partsare moved in the axial-movement of the knob, the hub f (Fig. 6) of thedisk 0 carries a spring 9 with a pointed end adapted to take into one orthe other of two grooves ina ring h which is rotatively mounted in theinside face 9' of the casing, but is held from axial movement by meansof a ring it extending partly around its circumference and overhanging aflange on the ring h. The ring h is in fact a hub which carries theoperating arm C. This ring carries also a pin 1 projecting inwardly andby means of which the movement of the inside knob is communicated to theoperating arm, so that the'lock may be always operated from the insidewithout the necessity of following the combination.

The outside knob m is provided with fins or keys n taking intocorresponding grooves in the hub f of the controlling arm, so as torotate this hub with the knob. It is provided also with a shoulder o andwith a removable sleeve p at the end of the shank, the hub of thecontrolling arm being'held between the shoulder 0 and the removablesleeve p, so as to partake of the axial movements of the knob. The shankq of the outside knob is hollow, and is provided at its end with anarrow slot 1" (Fig. 8) which permits the shank to be passed over theinward. projection l, and with a widened slot 8. which permits thenecessary rotary movements of the shank q (through approximately a saidpin, so that when the inside knob is turned the -motion thereof iscommunicated directly to the operating arm 0. The parts of the shank areassembled by arranging the sleeve p on the end of the shank q,

and the shank t within the shank q, and then passing the screw 1)through the sleeve and the shank q to fix these two parts together. Inthis position the rounded inner end of the screw projects into a groovewon the outside of the shank t, so that the twoshanks may r0.-

. tate independently of each other, but must move- '00-,

gether when one of them is moved axially.

I provide also a bell or other alarm adapted to be Y operated when. theknob is turned, and means for rendering the bell operative orinoperative by a very simple movement. Preferably the bell: is a simplespring bell x of well; known type which continues to ring as long as abutton y is pressed until the spring runs down, the spring being rewoundby turning the gong of the bell. The button y is made to project nearthe lower edge of the bell, and the screw 11 extends outward aconsiderable distance to form an operating pin 2, The base 1 of the bellis pivotally attached, as by means of a screw 2, to the inner face ofthe door, a and is provided with a thumb-pieceor lever 3-whereby it maybe swung from the dotted line position to the full line position in Fig,7, or vice versa, a stop 4, in the form of a pin lying in the path ofthe stern of the button y being provided for determining when the buttonis in operative position. N ow when the outer knob is turned at thevery. beginning of its movement the pin z presses thevbutton y and ringsthe bell. Each time that the operator has to go back tothestartingposition, the bell rings again, By reason of this fact it canbe easily ascertained thatv some one is trying the door who is notfamiliar with, the combination. Either in addition to the bell arrangeddirectly on, the door, on in placethereof, a bell may be provided at adistance, as in the bed room, far removed from the door, and -may beoperated by the making and breaking of, an electrical contact by thepinz, in a manner, entirely similar to that explained for the hell no.

The oonstruction and, arrangement of the shaft for the knobs aredesigned to make it impossible to remove the knobs from the outside,which would. prevent the v opening of. the lock. It serves theadditional purpose jof providing another means of ringing the alarmbell.

The last tooth 5 0n the disk orplate O is made wider than the others, sothat after thebolt has been withdrawn and, the knob is released the armD will be thrown back by the spring ea distance greater than that of oneof the regular teeth, and, sufficient to disengage the armL from the pinland allow the latter to drop. In, thisconneetion it is to be observedthat the arm K is preferably made wider and heavier at its lower, end,so as tofacilitate its dropping toits normal position.

Besides the stop Q,there are additional, stops 6 and r 17, all of whichare made also in the form of screws for fastening the casing together,the stop 6 serving to limit the movement of the operating arm 0, and thestop 7 serving to support the lower end of the member R and at the sametime to limit the outward movement of the bolt by engagement with theshoulder 8 thereon.

Though I have described with great particularity of detail certainspecific embodiments of my invention, yet it is not to be understoodtherefrom that the invention is restricted to the particular embodimentsdisclosed. Various modifications thereof in detail and in thearrangement and combination of the parts may be made without departurefrom the invention.

What I claim is:

1. A look including in combination an arm, a'series of stops arranged inparallel lines, means for moving the end of said arm over such lines andgiving it axial movements at suitable intervals to avoid engagement withsaid stops as it is so moved, and a pivoted member constituting the endof said arm, and adapted when engaged by one of said stops to render thelock inoperative.

2. A look including in combination a controlling arm D, a series ofstops arranged in parallel lines, means for mov ing the end of said armover such lines and giving it axial movements at suitable intervals toavoid engagement with said stops as it is so moved, a pivoted member Econstituting the end of said controlling arm, an operating arm having apart adapted to be engaged by a part of said pivoted member E in thenormal position of the latter, and adapted to be out of line with saidmember E when the latter has been moved by engagement of its end withone of said stops, so that by such engagement the lock is renderedinoperative.

A lock including in combination a controlling arm D, a pivoted member Econstituting the end of said controlling arm, an operating arm having apin J adapted to be engaged by a part of said pivoted member E in thenormal position of the latter, said pin J being pivotally supported andadapted when engaged by said part of the pivoted member E to swing thelatter out of its normal position, so that when the two areseparated thepin J swings back to its normal position and leaves said part in itsinoperative position.

4. In a combination lock, a member carrying stops the position of whichdetermines the combination according to which the lock is opened, saidmember adapted to be removably held in the casing of said lock and to beyield ingly held in place therein so as to permit removal of same bymerely pulling it.

5. A combination lock having a member R carrying stops the position ofwhich determines the combination, an extension S of said member adaptedto fit in a recess in the edge of the casing, and a spring V arranged tohold said extension and member in place yieldingly so as to permitremoval by merely pulling it.

6. In a combination look a member carrying stops the position of whichdetermines the combination, the indi vidual stops being shiftable onsaid member to vary the combination and yieldingly held in positionthereon.

7. A combination lock having stops H the position of which determinesthe combination, said stops being carried in a member R having slots Y,said stops having shafts passing through said slots with heads on theirunder sides, and a spring I: having recesses adapted to engage saidstops to hold them impositively in position.

8. A combination lock including an arm, a series of stops arranged inparallel lines, means for moving the end of said arm over such lines andgiving it axial movements at suitable intervals to avoid engagement withsaid stops, and a plate 0 arranged to rotate as said arm is moved, saidplate having teeth on its edge, and a spring (I fastened to the casingand having its free end engaging said teeth and adapted to click overthe same as the arm and plate are moved.

9. A combination lock having a shaft q for an outside knob, a shaft tfor an inside knob, a sleeve 1; fitting over the inner end of the shaftsaid inside shaft 12 having a groove w, and a screw 12 passing throughthe sleeve and the outside shaft and fastening them fixedly together andhaving its end entering the groove 10 so as to permit rotation of theshafts relatively to each other while preventing relative axialmovement.

In witness whereof, I have hereunto signed my name in the presence oftwo subscribing witnesses.

OLIVER M. FARRAND.

Witnesses:

DOMINGO A. Usnu, THEODORE T. SNELL.

